Actionscript 3 组合框'；使用As3 air应用程序的ipad（视网膜显示器）的s下拉位置

我在as3移动应用程序中为ipad视网膜显示创建的应用程序。屏幕上显示的组合框的大小非常小，这是因为它动态地改变了组合框的字体和大小。这一切几乎都很好。但下拉列表定位所面临的问题是，无法改变y位置

        var tf:TextFormat = new TextFormat();
        tf.font = "Arial";
        tf.size = 35;
        tf.color = 0x747070;

        var dp:DataProvider = new DataProvider();
        dp.addItem({label:"London", data:"item1"});
        dp.addItem({label:"Paris", data:"item2"});
        dp.addItem({label:"Sofia", data:"item3"});
        dp.addItem({label:"Praha", data:"item4"});
        dp.addItem({label:"Praha1", data:"item5"});
        dp.addItem({label:"Praha2", data:"item6"});

        _clip = new ComboBoxClip();
        _clip.combo.dataProvider = dp;
        _clip.combo.width = 199;
        _clip.combo.height = 50;
        _clip.combo.textField.setStyle("embedFonts", true);
        _clip.combo.textField.setStyle("textFormat", tf);
        _clip.combo.textField.setStyle("textPadding", 5);
        _clip.combo.dropdown.setStyle("cellRenderer", CustomCellRenderer);
        _clip.combo.dropdown.rowHeight = 31;
        _clip.combo.dropdown.setStyle("paddingTop", 150);
        _clip.combo.addEventListener(Event.CHANGE, onComboChange);
        _clip.combo.tabIndex = 1;
        _clip.x = _clip.y = 30;
        addChild(_clip);

以及CustomeCellRenderer类

public class CustomCellRenderer extends CellRenderer {

    public function CustomCellRenderer() {
        super();

        var tf:TextFormat = new TextFormat();
        tf.font = "Arial";
        tf.size = 35;
        tf.color = 0x747070;

        setStyle("embedFonts", true);
        setStyle("textFormat", tf);         
    }
    override protected function drawLayout():void {
        super.drawLayout()
        textField.y += 2;
        textField.x += 4;
    }

}

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更改组合框和下拉列表的高度、宽度和文本大小以满足您的需要

var dp:DataProvider = new DataProvider();
dp.addItem({label:"London", data:"item1"});
dp.addItem({label:"Paris", data:"item2"});
dp.addItem({label:"Sofia", data:"item3"});
dp.addItem({label:"Praha", data:"item4"});
dp.addItem({label:"Praha1", data:"item5"});
dp.addItem({label:"Praha2", data:"item6"});

var tf:TextFormat;
tf = new TextFormat("Arial", 22, 0x747070);
comboBox.textField.height = 22;
comboBox.textField.setStyle("textFormat", tf);
comboBox.dropdown.setRendererStyle("textFormat", tf);
comboBox.dropdown.rowHeight = 32; //height of dropdown row
comboBox.dropdownWidth = 199; //combox and dropdown same width
comboBox.width = 199; //combox and dropdown same width
comboBox.height = 36;
comboBox.move(100, 100); //(x,y) use this to position comboBox
comboBox.prompt = "Select Something"; //if you need a prompt
comboBox.selectedItem = comboBox.getItemAt(-1); //show prompt
comboBox.dataProvider = dp;
comboBox.addEventListener(Event.CHANGE, onComboChange);
addChild(comboBox);

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组合框的代码在哪里？您必须为下拉选择中的项目设置格式